144481240 has 32 divisors (see below), whose sum is σ = 325458000. Its totient is φ = 57725824.

The previous prime is 144481231. The next prime is 144481241. The reversal of 144481240 is 42184441.

144481240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144481199 and 144481208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144481241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47691 + ... + 50629.

Almost surely, 2^144481240 is an apocalyptic number.

144481240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144481240 is an abundant number, since it is smaller than the sum of its proper divisors (180976760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144481240 is a wasteful number, since it uses less digits than its factorization.

144481240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4175 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 144481240 is about 12020.0349417129. The cubic root of 144481240 is about 524.7315210786.

The spelling of 144481240 in words is "one hundred forty-four million, four hundred eighty-one thousand, two hundred forty".